Ablation of the Pulmonary Veins for Paroxysmal Afib (MAP-PAF)
17 september 2018 uppdaterad av: Medtronic Cardiac Rhythm and Heart Failure
Multi-Array Ablation of the Pulmonary Veins for Paroxysmal Atrial Fibrillation
The purpose of this trial was to investigate and confirm the safety, efficacy, and efficiency of the Ablation Frontiers® Cardiac Ablation System when used in the treatment of paroxysmal atrial fibrillation.
(PAF)
Studieöversikt
Status
Avslutad
Betingelser
Intervention / Behandling
Detaljerad beskrivning
This trial was a non-randomized, multi-center, prospective study of subjects with symptomatic, paroxysmal atrial fibrillation (PAF).
The purpose of this study was to investigate and confirm the safety, efficacy and efficiency of the Medtronic Ablation Frontiers® Cardiac Ablation System when used for the treatment of paroxysmal AF.
The trial was conducted over a 2 year period with enrollment occurring between 4 October 2007 and 1 December 2008.
Studietyp
Interventionell
Inskrivning (Faktisk)
55
Fas
- Fas 4
Kontakter och platser
Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.
Studieorter
-
-
-
Copenhagen, Danmark
- Rigshospitalet
-
Varde, Danmark
- Hjertecenter Varde
-
-
-
-
-
Nieuwegein, Nederländerna
- St. Antonius Ziekenhuis
-
-
-
-
-
Zurich, Schweiz
- Klinik im Park
-
-
-
-
-
Bad Berka, Tyskland
- Zentralklinik
-
-
Deltagandekriterier
Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.
Urvalskriterier
Åldrar som är berättigade till studier
18 år till 70 år (Vuxen, Äldre vuxen)
Tar emot friska volontärer
Nej
Kön som är behöriga för studier
Allt
Beskrivning
Inclusion Criteria:
History of symptomatic paroxysmal atrial fibrillation defined as:
- Self terminating AF lasting no more than 7 days
- AF events demostrating spontaneous conversion back to sinus rhythm
- Documentation of one or more events with PAF tracings by ECG, event recordings, pacemaker strips or monitor rhythm strips within the past year
- AF symptoms defined as the manisfestation of any of the following: Palpitations, Fatigue, Exertional dyspnea, effort intolerance
- Age between 18 and 70
- Willingness, ability and commitment to participate in baseline and follow-up evaluations for the full length of the study
Exclusion Criteria:
- Structural heart disease of clinical significance
- Prior ablation for arrhythmias other than AF within the past three months
- Prior left sided AF ablation
- Enrollment in any other ongoing arrhythmia study protocol
- Any ventricular tachyarrhythmias currently being treated where the arrhythmia or the management may interfere with this study
- Active infection or sepsis
- Any history of cerebral vascular disease including stroke or TIAs
- Pregnancy or lactation
- Untreatable allergy to contrast media
- Any diagnosis of atrial fibrillation secondary to electrolyte imbalance, thyroid disease, or any other reversible or non-cardiovascular causes
- History of blood clotting (bleeding or thrombotic) abnormalities
- Known sensitivities to heparin or warfarin
- Severe COPD (identified by an FEV1 < 1)
- Severe co morbidity or poor general physical/mental health that, in the opinion of the investigator, will not allow the patient to be a good study candidate (i.e. other disease processes, mental capacity, substance abuse, shortened life expectance, etc.)
Studieplan
Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Behandling
- Tilldelning: N/A
- Interventionsmodell: Enskild gruppuppgift
- Maskning: Ingen (Open Label)
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
|---|---|
|
Experimentell: Ablated Patients
Patients with a history of symptomatic paroxysmal (self-terminating) AF and meeting all inclusion/exclusion criteria, as identified by the clinical investigator, will be enrolled in the study.
|
Patients with a history of symptomatic paroxysmal (self-terminating) AF and meeting all inclusion/exclusion criteria, as identified by the clinical investigator, will be enrolled in the study.
Andra namn:
|
Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Number of Participants With Successful Pulmonary Vein Isolation
Tidsram: 6 months
|
Acute effectiveness was defined as successful isolation of all pulmonary veins.
Pulmonary vein isolation was documented by the absence of pulmonary vein potentials when assessed by electrogram tracings in sinus rhythm using the PVAC catheter.
|
6 months
|
|
Chronic Effectiveness
Tidsram: 6 months
|
The primary endpoint for chronic effectiveness was the evaluation of the proportion of subjects with treatment success computed at the 6 month visit.
In order to be classified as a chronic success, all subjects were required to meet the following criteria: Absence of clinically significant AF (greater than 60 seconds) or left atrial tachycardia recorded on a 7-day Holter, absence of symptomatic AF after a 3 month blanking period, off all Class I and III AADs at 6 months.
|
6 months
|
|
Acute Safety
Tidsram: 7 days post procedure
|
The Acute Safety Endpoint was defined as the proportion of subjects with Serious Adverse Events (SAEs) that were procedure- and/or device-related within 7 days after the ablation procedure.
The relatedness of each event was assessed by the investigator at each site.
|
7 days post procedure
|
|
Chronic Safety
Tidsram: 7 day post procedure to 6 months
|
The Chronic Safety Endpoint was the proportion of subjects with serious procedure- and/or device-related events in the 7 day to 6 month follow-up period post-ablation.
The relatedness of each event was assessed by the investigator at each site.
|
7 day post procedure to 6 months
|
Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Atrial Fibrillation Symptom Severity Scores From Baseline to 6 Months
Tidsram: 6 Months
|
Subjects rated the severity of their AF-related symptoms at baseline and at each follow-up visit for the study.
Symptoms that were assessed at each visit included the presence of palpitations, fatigue, shortness of breath, lightheadedness or dizziness, and/or lack of energy upon exertion or exercise.
Each symptom was rated on a scale from 1 (no symptoms) to 5 (most severe).
Total scores were obtained by adding up the rating for each symptom to obtain a range of results between 5 (asymptomatic) to 25 (severely symptomatic).
|
6 Months
|
|
The Short Form 36 Question (SF-36) Health Survey Quality of Life Survey at 6 Months Compared to Baseline
Tidsram: 6 months
|
The SF-36 is a short-form health survey of 36 questions that yields an 8-scale health profile as well as psychometrically-based physical and mental health summary measures.
In order to assess improvement in self-perceived quality of life, subjects were asked to complete SF-36 questionnaires at baseline and at each follow-up visit.
The results of the Physical Component and Mental Component scores from the two summary measures that aggregate sub-scales were then compared.The SF-36 subscales range from 0 (lowest) to 100 (highest).
The subscales are averaged together for a total score between 0 to 100.
A higher score represents a better outcome when compared to a lower score.
|
6 months
|
|
Measurement of the Cumulative RF Time for Pulmonary Vein(PV)Isolation of All Accessible Pulmonary Veins
Tidsram: After Procedure
|
Cumulative RF time was calculated by the difference between the start time of catheter ablations and the end time of the ablation
|
After Procedure
|
|
Total Procedure Time
Tidsram: End of Procedure
|
Measurement of total procedure time defined as "skin to skin" and left atrial dwell time (transseptal puncture to removal of all left atrial catheters)
|
End of Procedure
|
|
Total Fluoroscopy Time
Tidsram: Post Ablation Procedure
|
Total time that flouroscopy was used during the ablation procedure.
|
Post Ablation Procedure
|
Samarbetspartners och utredare
Det är här du hittar personer och organisationer som är involverade i denna studie.
Samarbetspartners
Publikationer och användbara länkar
Den som ansvarar för att lägga in information om studien tillhandahåller frivilligt dessa publikationer. Dessa kan handla om allt som har med studien att göra.
Användbara länkar
Studieavstämningsdatum
Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.
Studera stora datum
Studiestart
1 oktober 2007
Primärt slutförande (Faktisk)
1 september 2009
Avslutad studie (Faktisk)
1 juli 2011
Studieregistreringsdatum
Först inskickad
28 augusti 2008
Först inskickad som uppfyllde QC-kriterierna
29 augusti 2008
Första postat (Uppskatta)
1 september 2008
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
19 september 2018
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
17 september 2018
Senast verifierad
1 september 2018
Mer information
Termer relaterade till denna studie
Nyckelord
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- AFI-40
Denna information hämtades direkt från webbplatsen clinicaltrials.gov utan några ändringar. Om du har några önskemål om att ändra, ta bort eller uppdatera dina studieuppgifter, vänligen kontakta register@clinicaltrials.gov. Så snart en ändring har implementerats på clinicaltrials.gov, kommer denna att uppdateras automatiskt även på vår webbplats .